Financial Instruments (Carrying Value, Fair Value And Hierarchy Of Financial Instruments) (Details) (USD $)
In Thousands, unless otherwise specified |
Dec. 31, 2014
|
Dec. 31, 2013
|
---|---|---|
Carrying Value [Member] | ||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Mutual fund investments of deferred compensation plans held in trust | $ 49,147 | $ 42,465 |
Long-term debt and current portion of long-term debt | 147,500 | 183,564 |
Quoted Prices In Active Markets For Identical Assets (Level 1) [Member] | ||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Mutual fund investments of deferred compensation plans held in trust | 49,147 | 42,465 |
Long-term debt and current portion of long-term debt | 193,032 | |
Significant Other Observable Inputs (Level 2) [Member] | ||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Long-term debt and current portion of long-term debt | $ 147,500 |